我心中的核心组件（可插拔的AOP）~第三回 日志记录组件之log4net

<log4net>
  <logger name="loginfo">
    <level value="INFO" />
    <appender-ref ref="LogFileAppender" />
  </logger>
  <!--定义输出到文件中-->
  <appender name="LogFileAppender" type="log4net.Appender.FileAppender">
    <!--定义文件存放位置-->
    <file value="log4netfile.txt" />
    <appendToFile value="true" />
    <layout type="log4net.Layout.PatternLayout">
      <!--每条日志末尾的文字说明-->
      <footer value="by 占占" />
      <!--输出格式-->
      <!--样例：2008-03-26 13:42:32,111 [10] INFO  Log4NetDemo.MainClass [(null)] - info-->
      <conversionPattern value="记录时间：%date 线程ID:[%thread] 日志级别：%-5level 出错类：%logger property:[%property{NDC}] - 错误描述：%message%newline" />
    </layout>
  </appender>
  <!--定义输出到控制台命令行中-->
  <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender" >
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
  </appender>
  <!--定义输出到windows事件中-->
  <appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
  </appender>
  <!--定义输出到数据库中，这里举例输出到Access数据库中，数据库为C盘的log4net.mdb-->
  <appender name="AdoNetAppender_Access" type="log4net.Appender.AdoNetAppender">
    <connectionString value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:log4net.mdb" />
    <commandText value="INSERT INTO LogDetails ([LogDate],[Thread],[Level],[Logger],[Message]) VALUES (@logDate, @thread, @logLevel, @logger,@message)" />
    <!--定义各个参数-->
    <parameter>
      <parameterName value="@logDate" />
      <dbType value="String" />
      <size value="240" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@thread" />
      <dbType value="String" />
      <size value="240" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%thread" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@logLevel" />
      <dbType value="String" />
      <size value="240" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%level" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@logger" />
      <dbType value="String" />
      <size value="240" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%logger" />
      </layout>
    </parameter>
    <parameter>
      <parameterName value="@message" />
      <dbType value="String" />
      <size value="240" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%message" />
      </layout>
    </parameter>
  </appender>
  <!--定义日志的输出媒介，下面定义日志以四种方式输出。也可以下面的按照一种类型或其他类型输出。-->
</log4net>

　　　  static JobBase()
        {
            log4net.Config.XmlConfigurator.Configure();//加载app.config中的配置
        }

        /// <summary>
        /// log4日志对象
        /// </summary>
        protected log4net.ILog Logger = log4net.LogManager.GetLogger("Core.Logger");

 log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(Environment.CurrentDirectory + @"\log4net.config"));